Composed forms for Grok, using z3c.form.
Project description
megrok.z3cform.composed is a package dedicated to define and register composed forms. Composed forms are forms built from a collection of sub forms.
megrok.z3cform.composed is based on z3c.form and megrok.z3cform.base.
Getting started
We import the needed dependencies:
>>> import grokcore.view as grok >>> import megrok.z3cform.composed >>> from megrok.z3cform.composed import ComposedForm, SubForm
We import the components utilities:
>>> from zope.component import getMultiAdapter >>> from zope.publisher.browser import TestRequest
Defining a composed form
Context
A form needs a context. Let’s create a simple model for test purposes:
>>> class MyContent(object): ... pass
Declaration
>>> class Form(ComposedForm): ... grok.context(MyContent)
Registration
>>> grok_component('composed', Form)
True
Query
>>> content = MyContent() >>> request = TestRequest()>>> composed = getMultiAdapter((content, request), name="form") >>> composed <megrok.z3cform.composed.tests.Form object at ...>>>> composed.subforms []>>> composed.updateForm() >>> composed.subforms []
Defining sub forms
Declaration
>>> class SubFormOne(SubForm): ... grok.context(MyContent) ... megrok.z3cform.composed.order(2) ... megrok.z3cform.composed.view(Form)>>> class SubFormTwo(SubForm): ... grok.context(MyContent) ... megrok.z3cform.composed.order(1) ... megrok.z3cform.composed.view(Form)
Registration
>>> grok_component('one', SubFormOne) True>>> grok_component('one', SubFormTwo) True
Query
>>> composed.subforms []>>> composed.updateForm() >>> composed.subforms [<megrok.z3cform.composed.tests.SubFormTwo object at ...>, <megrok.z3cform.composed.tests.SubFormOne object at ...>]>>> for sub in composed.subforms: ... print sub.prefix, sub.parentForm subformtwo <megrok.z3cform.composed.tests.Form object at ...> subformone <megrok.z3cform.composed.tests.Form object at ...>
Changelog
0.1 (2009-10-27)
Initial release
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